RPNA 15/28

Spherical needle roller bearings without inner ring

Spherical needle roller bearings offer compact solutions in applications where space is at a premium. Due to the large number of rollers, they have a high load carrying capacity. In their internal design, the use of a convex outer ring accommodates two concave seating rings in the tensile sleeve, enabling the bearings to withstand initial static misalignment. If the shaft cannot be hardened and ground, bearings without inner rings are the best choice for compact bearing arrangements.

  • High radial load carrying capacity
  • Can withstand static initial misalignment
  • Small cross-section
  • Suitable for compact bearing arrangements

+86 13817962999

Overview
Technical Parameters

Overview

Skim Through

Size

Needle roller full bore diameter15.0mm
Outer diameter28.0mm
Width12.0mm

Performance

Basic rated dynamic load7.37kN
Basic rated static load9.15kN
Reference speed24000.0r/min
Limiting speed28000.0r/min

Properties

Bearing parts Bearing without inner ring
Number of columns 1
Type of outer ring Pressed outer ring with open ends
Alignment function with
Cage Steel plate
Number of flanges, outer ring 2
Tolerance class Normal
Material, bearing Bearing steel
Coated Without
Sealing without
Seal type Not Applicable
Lubricant None
Relubrication function Without

Logistics

Net weight0.032kg
eClass Code 23-05-09-03
UNSPSC Code 31171512

Technical Parameters

Technical Parameters

Size

Fw min.15.0mm Roller inner diameter
D28.0mm Outer diameter
C12.0mm Width
D124.5mm Spacer Shoulder I.D.
r0.8mm Chamfering dimensions of steel plate retaining sleeve

Shoulder size

Da min.23.5mm Minimum permissible bearing housing shoulder
Da max.24.5mm Bearing housing shoulder diameter
ra max.0.8mm Chamfering radius

Data calculation

Basic dynamic load rating C7.37kN
Basic rated static loadC09.15kN
Fatigue Load LimitPu1.08kN
Reference speed24000.0r/min
Limit speed28000.0r/min

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